Development of a Novel Ultrasonic Waveguide Transducer for Under-Sodium Viewing

Wang, K.; Chien, H. T.; Lawrence, W.P.; Engel, David M.; Sheen, S.H.

doi:10.1063/1.3592127

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…For imaging in sodium cooled fast reactors Argonne National Laboratory, USA, developed waveguide ultrasonic transducers in which the waveguide was a bundle rod with a spiral sheet [ 55 , 56 , 57 ]. Such a design enabled reduction of trailing waves caused by dispersion and mode conversion.…”

Section: Types Of the Ultrasonic Transducersmentioning

confidence: 99%

High Temperature Ultrasonic Transducers: A Review

Kažys

Vaškelienė

2021

Sensors

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There are many fields such as online monitoring of manufacturing processes, non-destructive testing in nuclear plants, or corrosion rate monitoring techniques of steel pipes in which measurements must be performed at elevated temperatures. For that high temperature ultrasonic transducers are necessary. In the presented paper, a literature review on the main types of such transducers, piezoelectric materials, backings, and the bonding techniques of transducers elements suitable for high temperatures, is presented. In this review, the main focus is on ultrasonic transducers with piezoelectric elements suitable for operation at temperatures higher than of the most commercially available transducers, i.e., 150 °C. The main types of the ultrasonic transducers that are discussed are the transducers with thin protectors, which may serve as matching layers, transducers with high temperature delay lines, wedges, and waveguide type transducers. The piezoelectric materials suitable for high temperature applications such as aluminum nitride, lithium niobate, gallium orthophosphate, bismuth titanate, oxyborate crystals, lead metaniobate, and other piezoceramics are analyzed. Bonding techniques used for joining of the transducer elements such as joining with glue, soldering, brazing, dry contact, and diffusion bonding are discussed. Special attention is paid to efficient diffusion and thermo-sonic diffusion bonding techniques. Various types of backings necessary for improving a bandwidth and to obtain a short pulse response are described.

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Section: Types Of the Ultrasonic Transducersmentioning

confidence: 99%

High Temperature Ultrasonic Transducers: A Review

Kažys

Vaškelienė

2021

Sensors

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“…Several transducer technologies have been developed for under sodium viewing. Most of them are listed in the review paper [6,7,8,9,10,11,12]. EMAT (Electromagnetic acoustic transducer) technology also seems to be interesting, due to the fact that wetting is not necessary to generate or receive ultrasonic waves [13].…”

Section: Ultrasonic Transducer For Non-destructive Testing (Ndt) Umentioning

confidence: 99%

Ultrasonic Transducer for Non-Destructive Testing of Structures Immersed in Liquid Sodium at 200 °C

Saillant¹,

Marlier²,

Navacchia

et al. 2019

Sensors

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TUCSS transducer (French acronym standing for Transducteur Ultrasonore pour CND Sous Sodium) is designed for performing NDT (Non-Destructive Testing) under liquid sodium. Under sodium, the tests results obtained show that these transducers have sufficiently good acoustic properties to perform basic NDT of a structure immersed under liquid sodium at about 200 °C using conventional immersion ultrasonic technics. Artificial defects were made next to an X-shaped weld and could clearly be detected.

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Waveguide-based ultrasonic and far-field electromagnetic sensors for downhole reservoir characterization.

Sheen¹,

Chien²,

Wang³

et al. 2010

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This report summarizes the first year research and development effort leading to development of high--temperature sensors for enhanced geothermal systems. It covers evaluation of ultrasonic and electromagnetic (EM) techniques applied to temperature measurement and flow characterization. On temperature measurement, we have evaluated both microwave radiometry and ultrasonic techniques for temperature gradient and profile measurements. Different antenna designs are evaluated and array loop antenna design is selected for further development. We have also evaluated ultrasonic techniques for total flow characterization, which includes using speed of sound to determine flow temperature, measuring acoustic impedance to estimate fluid density, and using cross--correlation technique to determine the mass flow rate. Method to estimate the flow enthalpy is briefly discussed. At end, the need and proposed techniques to characterize the porosity and permeability of a hot dry rock resource are presented.Waveguide--based ultrasonic and far--field electromagnetic sensors for downhole reservoir characterization ANL--10/34 ii Waveguide--based ultrasonic and far--field electromagnetic sensors for downhole reservoir characterization ANL--10/34 iii

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Development of a Novel Ultrasonic Waveguide Transducer for Under-Sodium Viewing

Cited by 3 publications

References 9 publications

High Temperature Ultrasonic Transducers: A Review

High Temperature Ultrasonic Transducers: A Review

Ultrasonic Transducer for Non-Destructive Testing of Structures Immersed in Liquid Sodium at 200 °C

Waveguide-based ultrasonic and far-field electromagnetic sensors for downhole reservoir characterization.

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